Aliko Dangote’s oil refinery has locked down $2.5 billion from a private share sale that ranks as the largest disclosed primary equity placement on the continent, setting up a public listing that bankers expect to be Africa’s biggest ever.

Dangote Petroleum Refinery and Petrochemicals FZE said Thursday it had completed the placement at 3.7 times oversubscription, issuing and allotting the new equity to a mix of sovereign-linked funds, development finance institutions and long-time strategic backers. Africa Finance Corporation and India Infra Buildco, a vehicle arranged through the African Export-Import Bank, were among the participants, alongside a broader pool of institutional and individual investors.

The raise is the first time the 650,000-barrel-a-day refinery has brought in outside capital beyond its founding shareholder base, a shift that people close to the transaction said reflects Dangote’s push to widen ownership before an initial public offering targeted for as early as September on the Nigerian Exchange.

The private placement has proceeded in stages since June, when the refinery sold an initial tranche that set a valuation floor near $39 billion; the latest close, at pricing said to value the enterprise at roughly $40 billion, drew total demand of close to $4 billion — well ahead of what was on offer.

“This is a strategic step to deepen and further institutionalise the Enterprise’s shareholder base, while raising capital to complement our internal cash flows and external funding as DPRP advances its expansion agenda,” Aliko Dangote, president and chief executive of Dangote Industries Limited and chairman of the refinery, said in a statement.

He added that the raise “demonstrates our profound commitment to developing domestic refining and petrochemical capacity, reducing Africa’s reliance on imported refined products and strengthening the continent’s energy security.”

David Bird, the refinery’s managing director and chief executive, called the demand “a testament to our operational excellence, execution capacity, and investor confidence in DPRP’s leadership”.

Bankers who have tracked the deal said the scale of interest underscores how starved global and regional funds have been for exposure to African infrastructure at this size.

“You don’t often get a single-asset African credit story that can absorb billions of dollars of institutional demand in one sitting,” one Lagos-based investment banker familiar with the offering said, asking not to be named discussing a private transaction. “That’s what makes this one different — it’s a real test of depth, not just headline appetite.”

Proceeds will help fund an expansion that aims to more than double the complex’s processing capacity to 1.4 million barrels a day by 2028, a scale that would place it among the largest refining operations in the world.

The refinery, which began production in 2024 on the outskirts of Lagos, has already cut Nigeria’s reliance on imported fuel and turned the country into a net exporter of diesel, jet fuel and naphtha. It raised $750 million in debt earlier this year to complement the equity effort.

The private placement is widely seen as a dress rehearsal for the IPO, which people familiar with the planning say could raise a further $1.5 billion to $2 billion and is expected to lean heavily on Nigerian and other African retail investors, alongside the institutional base that anchored this round.

Neither Dangote Industries nor the refinery has disclosed the full list of subscribers or the precise stake sold in the transaction.

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